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Finding the Fourth Proportional to 353,142.40, 529,713.60 and 329,641.60

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Solution

The fourth proportional to 353,142.40, 529,713.60 and 329,641.60 is: 494,462.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,142.40 : 529,713.60 = 329,641.60 : x
  2. Step 2: Convert to fraction form
    353,142.40/529,713.60 = 329,641.60/x
  3. Step 3: Cross multiply
    353,142.40x = 529,713.60 × 329,641.60
  4. Step 4: Simplify right side
    353,142.40x = 174,615,638,645.76
  5. Step 5: Solve for x
    x = 174,615,638,645.76/353,142.40
  6. Step 6: Final answer
    x = 494,462.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.